我们从Python开源项目中，提取了以下8个代码示例，用于说明如何使用PyQt5.QtCore.QPropertyAnimation()。
def getDetailInfo(self): """??????????: ???????????""" self.shortInfo.hide() self.detailInfo.show() self.showDetail = QPropertyAnimation(self, b"geometry") x = self.pos().x() y = self.pos().y() self.showDetail.setStartValue(QRect(x, y, self.width(), self.height())) # ??????????? self.showDetail.setEndValue(QRect(0, self.grandparent.header.height()+3, self.grandparent.width(), self.grandparent.mainContent.height())) self.showDetail.setDuration(300) self.showDetail.setEasingCurve(QEasingCurve.InBack) self.showDetail.start(QAbstractAnimation.DeleteWhenStopped) # ?????????????????????? self.raise_() self.setDetailInfo()
def getShortInfo(self): """????????????""" self.detailInfo.hide() self.showShort = QPropertyAnimation(self, b"geometry") x = self.pos().x() y = self.pos().y() self.showShort.setStartValue(QRect(0, self.grandparent.header.height(), self.grandparent.width(), self.grandparent.mainContent.height())) self.showShort.setEndValue(QRect(0, self.grandparent.height()-64-self.parent.height(), self.grandparent.navigation.width(), 64)) self.showShort.setDuration(300) self.showShort.setEasingCurve(QEasingCurve.InBack) self.showShort.start(QAbstractAnimation.DeleteWhenStopped) self.shortInfo.show() self.raise_()
def startHiding(self): self._hideTimer = None if self._showState in [self.STATE_HIDING, self.STATE_HIDDEN]: return if self._showState == self.STATE_HIDING: self._showAnimation.stop() self._showState = self.STATE_HIDING self._showAnimation = QtCore.QPropertyAnimation(self, b'windowOpacity') self._showAnimation.setStartValue(self.windowOpacity()) self._showAnimation.setEndValue(0.0) self._showAnimation.setDuration(500) self._showAnimation.finished.connect(self._showAnimationFinished) self._showAnimation.start()
def startShowing(self): if self._showState in [self.STATE_SHOWING, self.STATE_SHOWN]: return if self._showState == self.STATE_SHOWING: self._showAnimation.stop() self._showState = self.STATE_SHOWING self._showAnimation = QtCore.QPropertyAnimation(self, b'windowOpacity') self._showAnimation.setStartValue(self.windowOpacity()) self._showAnimation.setEndValue(1.0) self._showAnimation.setDuration(500) self._showAnimation.finished.connect(self._showAnimationFinished) self._showAnimation.start()
def _update_screen_rect(self): if self._animation is not None and self._animation.state() == QAbstractAnimation.Running: return vertical_offset_bias = self._line_height - self._first_lyrics_line_y vertical_offset = self._scroll_progress * \ (self._document_height - len(self._extra_lines_after) * self._line_height) if vertical_offset <= vertical_offset_bias: vertical_offset = 0 else: vertical_offset = min(vertical_offset - vertical_offset_bias, self._document_height) current_line_index = vertical_offset / self._line_height extra_line_count = len(tuple(filter(lambda i: i < current_line_index, self._extra_lines_after))) vertical_offset += self._line_height * extra_line_count diff = self.sceneRect().y() - vertical_offset if abs(diff) > self._line_height * self._line_increment: factor = -int(diff) // int(self._line_height * self._line_increment) y = self.sceneRect().y() + (self._line_height * self._line_increment) * factor y = max(0, y) target_rect = QRectF(0, y, self.w, self.h) if not self._covered: self._animation = QPropertyAnimation(self, b"sceneRect") self._animation.setDuration(3000) self._animation.setStartValue(self.sceneRect()) self._animation.setEndValue(target_rect) self._animation.setEasingCurve(QEasingCurve.InOutQuad) self._animation.start() else: self._animation = None self.setSceneRect(target_rect)
def fade_in(self): self.show() self.raise_() self._covered = False self._document_cover_animation = QPropertyAnimation(self._document_cover, b"opacity") self._document_cover_animation.setDuration(1000) self._document_cover_animation.setStartValue(1) self._document_cover_animation.setEndValue(0) self._document_cover_animation.setEasingCurve(QEasingCurve.InOutQuad) self._document_cover_animation.start()
def fade_out(self): self._document_cover_animation = QPropertyAnimation(self._document_cover, b"opacity") self._document_cover_animation.finished.connect(self._fade_out_finished) self._document_cover_animation.setDuration(1000) self._document_cover_animation.setStartValue(0) self._document_cover_animation.setEndValue(1) self._document_cover_animation.setEasingCurve(QEasingCurve.InOutQuad) self._document_cover_animation.start()
def __init__(self, parent=None, title='', animation_duration=300): """ References: # Adapted from c++ version http://stackoverflow.com/questions/32476006/how-to-make-an-expandable-collapsable-section-widget-in-qt """ super(GroupWidget, self).__init__(parent=parent) self.animation_duration = animation_duration self.toggle_animation = QParallelAnimationGroup() self.content_area = QScrollArea() self.header_line = QFrame() self.toggle_button = QToolButton() self.main_layout = QGridLayout() toggle_button = self.toggle_button toggle_button.setStyleSheet("QToolButton { border: none; }") toggle_button.setToolButtonStyle(Qt.ToolButtonTextBesideIcon) toggle_button.setArrowType(Qt.RightArrow) toggle_button.setText(str(title)) toggle_button.setCheckable(True) toggle_button.setChecked(False) header_line = self.header_line header_line.setFrameShape(QFrame.HLine) header_line.setFrameShadow(QFrame.Sunken) header_line.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Maximum) self.content_area.setStyleSheet("QScrollArea { background-color: white; border: none; }") self.content_area.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed) # start out collapsed self.content_area.setMaximumHeight(0) self.content_area.setMinimumHeight(0) # let the entire widget grow and shrink with its content toggle_animation = self.toggle_animation toggle_animation.addAnimation(QPropertyAnimation(self, bytes("minimumHeight", "utf-8"))) toggle_animation.addAnimation(QPropertyAnimation(self, bytes("maximumHeight", "utf-8"))) toggle_animation.addAnimation(QPropertyAnimation(self.content_area, bytes("maximumHeight", "utf-8"))) # don't waste space main_layout = self.main_layout main_layout.setVerticalSpacing(0) main_layout.setContentsMargins(0, 0, 0, 0) row = 0 main_layout.addWidget(self.toggle_button, row, 0, 1, 1, Qt.AlignLeft) main_layout.addWidget(self.header_line, row, 2, 1, 1) row += 1 main_layout.addWidget(self.content_area, row, 0, 1, 3) self.setLayout(self.main_layout) def start_animation(checked): arrow_type = Qt.DownArrow if checked else Qt.RightArrow direction = QAbstractAnimation.Forward if checked else QAbstractAnimation.Backward toggle_button.setArrowType(arrow_type) self.toggle_animation.setDirection(direction) self.toggle_animation.start() self.toggle_button.clicked.connect(start_animation)
